Chronic colitis in cats has been an ongoing problem for cat owners and veterinarians alike. Cats who have it suffer from diarrhea that comes and goes. Often the bowel movements are soft, like a ‘cow pie’ and can have blood and/or mucus in it. The most common cause is a protozoan Tritrichomonas foetus which typically infects the large bowel.
The cats that are most affected are young, about one year of age, come from catteries, shelters or places where there are multiple cats. This infection is transmitted both by feces and orally. What makes this a difficult infection to treat is that it does not respond to most medications. The only medication that seems to work is ronidazole. However, the effectiveness of this drug is in question.
For multiple cat households or multiple cat environments cleanliness is the best preventative measure that a cat owner can take. More research needs to be done and hopefully can resolve this issue in cats.